ストラトスフィアの記憶と,長期の天気予報のスキル
Mark P Baldwin1, David B Stephenson, David W J Thompson
1Northwest Research Associates, 14508 NE 20th Street, Bellevue, WA, 98007, USA.
まとめ
我々は,長期間の北極振動 (AO) 予測のための統計モデルを開発した. 予報のスキルは,特に冬には,熱帯圏に影響を与える絶え間ない平流圏循環異常に依存しています.
科学分野:
- 大気科学 大気科学
- 気候のダイナミクス
- 気象学 気象学 気象学
背景:
- 北極振動 (AO) は北半球の天候に影響を与える重要な気候パターンです.
- 拡張範囲でのAOを予測することは,依然として課題です.
研究 の 目的:
- 月間平均の北極振動 (AO) の長期予測のスキルを実証する.
- AOの予測性を推進するメカニズムを特定する.
主な方法:
- 経験的統計モデルを利用した.
- 最下層の平流圏における持続的な循環異常を分析した.
- 北極と南半球の予測可能性の比較.
主要な成果:
- 幅広い範囲のAO予測において,重要なスキルが示されました.
- 予報のスキルは,北極の冬の間に最大のものです.
- 予測可能性は,熱断層の上の循環異常が持続していることに依存する.
結論:
- 持続的な平流層の異常は,AOの予測性にとって極めて重要です.
- これらの異常は,おそらく上層熱帯圏の波の変化を通じて熱帯圏に影響を与えるだろう.
- この発見は,大気圏のテレコネクションと気候予測の理解を深める.
関連する概念動画
What is Weather?
Overview
Higher Mental Functions of Brain: Learning and Memory
Memory is one of the most vital higher mental functions of the brain. Memory is closely related to learning because it enables us to retain information and experiences from our past to use them in our present life. It also helps us to remember facts, events, and skills, such as riding a bike or swimming. There are two types of memory — declarative memory, which involves memorizing facts or events, and procedural memory, which enables us to remember how to do something like writing or playing an...
System of Memory
Memory is categorized into three major systems: sensory memory, short-term memory (STM), and long-term memory (LTM). These systems differ in their capacity and the duration for which they can hold information. Sensory memory captures raw sensory input from the environment, holding it for just a few seconds or less. For example, on hearing a brief, loud sound, like a car horn honking, the sound seems to linger in the mind for a moment even after it stops. This is an instance of sensory memory...
Chunking and Rehearsal in Sensory Memory
Improving short-term memory can be achieved through techniques like chunking and rehearsal. Chunking involves organizing information into larger, more manageable units. This technique is particularly useful for information that exceeds the typical memory span of between five and nine items. For instance, logging into an online account with a password like "ta89vq0179gz" involves grouping letters and numbers into three chunks—ta89, vq01, and 79gz. It makes large amounts of information more...
Long-Term Memory
Long-term memory is a relatively permanent type of memory, capable of storing vast amounts of information over extended periods. Its storage capacity is generally considered unlimited.
Long-term memory can be categorized into two primary types: explicit and implicit memory. Explicit memory, also known as declarative memory, involves the conscious recollection of information that we deliberately try to remember, recall, and articulate. This type of memory encompasses specific facts, events, and...
Long-term memory can be categorized into two primary types: explicit and implicit memory. Explicit memory, also known as declarative memory, involves the conscious recollection of information that we deliberately try to remember, recall, and articulate. This type of memory encompasses specific facts, events, and...
Implicit Memories
Implicit memories, also known as non-declarative memories, are long-term memories that function outside of conscious awareness. These memories influence behavior and skills without explicit knowledge. This type of memory is evident in tasks like playing tennis, snowboarding, and texting. Implicit memory has three subsystems: procedural memory, conditioning, and priming. This type of memory is essential in various activities, from everyday tasks to specialized skills.
One key aspect of implicit...
One key aspect of implicit...

